FR2617764A1 - Printer machine arranged for reduction of its sound operating level - Google Patents

Printer machine arranged for reduction of its sound operating level Download PDF

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Publication number
FR2617764A1
FR2617764A1 FR8709550A FR8709550A FR2617764A1 FR 2617764 A1 FR2617764 A1 FR 2617764A1 FR 8709550 A FR8709550 A FR 8709550A FR 8709550 A FR8709550 A FR 8709550A FR 2617764 A1 FR2617764 A1 FR 2617764A1
Authority
FR
France
Prior art keywords
printing
means
roller system
printing medium
drive roller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
FR8709550A
Other languages
French (fr)
Inventor
Guy Chevrollier
Olivier Dardenne
Jean-Michel Ciccone
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SAGEM SA
Original Assignee
SAGEM SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SAGEM SA filed Critical SAGEM SA
Priority to FR8709550A priority Critical patent/FR2617764A1/en
Publication of FR2617764A1 publication Critical patent/FR2617764A1/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J13/00Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers, thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/02Rollers
    • B41J13/03Rollers driven, e.g. feed rollers separate from platen
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J13/00Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers, thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/02Rollers
    • B41J13/025Special roller holding or lifting means, e.g. for temporarily raising one roller of a pair of nipping rollers for inserting printing material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J13/00Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers, thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/02Rollers
    • B41J13/036Rollers co-operating with a roller platen
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J15/00Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers, thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/16Means for tensioning or winding the web

Abstract

<P> The machine comprises: a printing cylinder 1 on which the printing medium 2 is rolled up and supported during the printing process; printing means 5 for printing the printing medium bearing on the printing cylinder; and advance means 4 located upstream of the printing means (in the direction of travel of the printing medium) suitable for moving the printing medium. It further comprises means 7, 8 for tensioning the printing medium suitable for tensioning the printing medium and applying it to the surface of the printing cylinder in the area of action of the printing means, said tensioning means being located downstream of the printing means (in the direction of travel of the printing medium). </P>

Description

Printer machine arranged for sound reduction

operating sound level.

  The present invention relates to improvements

  nements brought to the printing machines arranged to print a printing medium in sheet or strip form, in order to reduce the noise level during their operation. As shown in Figure 1 of the accompanying drawing (in which are shown very schematically

  only the components of a direct printer machine

  concerned in the context of the invention), a

  printing machine of the type targeted by the invention,

  takes, in particular, a printing cylinder 1 on which is wound a sheet or strip of printing support 2. The advance (arrow 3) of this sheet or strip is caused by the rotation of a drive roller 4 driven by motor means (not shown) and

  pressing the sheet or strip against the cylinder 1,

  mant capstan; the drive roller 4 is located upstream (in the direction of advance of the sheet or strip 2)

  printing means (shown diagrammatically by arrow 5).

  A significant source of noise, during the operation of such a printing machine, is located in the printing region of the printing medium. In fact, the sheet or strip of printing support 2, brought opposite the printing means 5, does not fit closely with the outline of the printing cylinder 1 and is not perfectly applied against the surface of the latter,

  despite the presence of side guides (not shown).

  As a result, there remains, between the sheet or strip 2 and the surface of the cylinder 1, an air wedge 6. When the printing means 5 (hammers or needles for example) are projected onto the surface of the sheet or of the printing support strip 2, the latter is suddenly pushed against the surface of the printing cylinder 1. Under these conditions, the noise generated by the impact of the printing means on the surface of the sheet or strip brutally applied against the surface of the impression cylinder is preceded by impact noise

  means for printing on the sheet or strip itself

  even; however this sheet or strip which is not at this moment in abutment on the surface of the cylinder and which has a relative natural rigidity, is put in vibration by the shock and, acting like a loudspeaker membrane, amplifies the vibration and generates a noise

important.

  The object of the invention is essentially to remedy this drawback of prior machines in order to reduce, as far as possible, the noise generated in the printing region during the

machine operation.

  To this end, in a printing machine arranged to print a printing medium in sheet or strip form and comprising: - a printing cylinder on which the printing medium is wound up and supported during the process of printing, - printing means for printing the printing medium resting on the printing cylinder, - and advancing means located upstream of the printing means (in the direction of travel of the support

  suitable for moving the print media

  s ion, provision is made, in accordance with the invention, that it further comprises means for tensioning the printing medium suitable for tensioning the printing medium and applying it to the surface of the cylinder d printing in the area of action of the printing means, said tensioning means being located downstream of the printing means (in the direction of

  scrolling the print media).

  Thanks to this arrangement, it is ensured that the printing sheet or strip is permanently applied to the surface of the printing cylinder and the previously mentioned air wedge no longer exists: the sheet or strip can no longer be vibrating under the shock of the printing means and eliminating this source of noise provides a significant reduction in the sound level during the operation of the machine,

  lowering which can reach of the order of 2 to 3 dB.

  In a preferred embodiment, the means for advancing the printing medium comprise a first drive roller system situated upstream from the printing means and in that the means for tensioning the printing medium comprise a second drive roller system located downstream of the printing means, said second drive roller system being driven in rotation with a higher speed & the speed of rotation of the first

  drive roller system.

  Advantageously, in this case, the rotational drive speed of the second drive roller system is 1 to 3% higher than the speed of

  rotation of the first drive roller system.

  In a particular embodiment, the first drive roller system comprises a feed motor roller for advancing the paper by rotating support against the printing cylinder, upstream of the printing means and the second system with printing rollers comprises two rolling mill rollers located downstream of the printing means, at least one of

these rollers being motor.

  The invention will be better understood on reading

  the following detailed description of a mode of

  preferred embodiment given solely by way of purely illustrative example, and in which reference is made to the accompanying drawing in which FIG. 2 very schematically shows a layout of a conforming printer machine

to the invention.

  In fig. 2, which is properly established

  laying in fig. 1 relating to the state of the art, the same members are designated by the same reference numerals. In accordance with the invention, downstream is available

  printing means 5 additional drive means

  of the print support sheet or strip

  sion 2 arranged so that the latter is permanently pressed against the surface of the cylinder

  printing 1 opposite the printing means 5.

  As shown we pass the sheet or strip 2

  in another capstan or rolling mill system, i.e.

  say between a roller 7 driven in rotation by motor means (not shown) and a counter-roller 8 with which the motor roller 7 cooperates; the roller 7 has a higher speed of rotation than that of the feed roller 4; the difference in the speeds of rotation of the rollers 7 and 4 must be sufficient so that the sheet or strip 2 remains constantly pressed against the surface of the cylinder 1, but must however not be excessive so as to avoid tearing of the sheet or strip 2 and so that the advance (in principle a step-by-step advance for line-by-line printing) of the printing medium controlled by the advance roller 4 is not disturbed by the traction exerted by the roller 7. An overspeed of roller 7 of the order of 1 to 3% relative to the speed of roller 4 seems to be the most suitable. Of course, still with the aim of avoiding a tearing of the printing medium 2, the drive means of the roller 7 can be arranged to absorb (for example the presence of an intermediate device for partial declutching or slipping) this

differential speed.

  As it goes without saying and as it follows moreover already from what precedes the invention is not

26 17764

  in no way limits those of its modes of application and embodiments which have been more especially envisaged;

  on the contrary, it embraces all its variants.

Claims (4)

  1. Printer machine arranged to print a sheet or strip printing medium and comprising: - a printing cylinder (1) on which the printing medium (2) is wound and supported during the process printing, - printing means (5) for printing the printing medium and pressing on the printing cylinder, - and advancing means (4) located upstream of the printing means (in the support scroll direction
  suitable for moving the print media
  sion, characterized in that it further comprises means (7, 8) for tensioning the printing medium suitable for tensioning the printing medium and applying it to the surface of the printing cylinder in the area of action of the printing means, said tensioning means being located downstream of the printing means (in the direction of travel of the printing medium).
2. Printing machine according to claim 1, characterized in that the means for advancing the printing medium comprise a first drive roller system situated upstream from the printing means and in that the tensioning means of the printing medium comprise a second drive roller system located downstream of the printing means, said second drive roller system being driven in rotation with a speed greater than the speed of rotation of the first roller system drive.
3. Printing machine according to claim 2, characterized in that the rotational drive speed of the second drive roller system is 1 to 3% greater than the rotational speed of the
  first drive roller system.
  4. Printing machine according to claim 2 or 3, characterized in that the first drive roller system comprises an advance motor roller (4) for advancing the paper by rotating support against the printing cylinder, in upstream of the printing means and in that the second printing roller system comprises two rollers (7, 8) forming a rolling mill located downstream of the printing means, one at
  o10 less (7) of these rollers being motor.
FR8709550A 1987-07-06 1987-07-06 Printer machine arranged for reduction of its sound operating level Pending FR2617764A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8709550A FR2617764A1 (en) 1987-07-06 1987-07-06 Printer machine arranged for reduction of its sound operating level

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
FR8709550A FR2617764A1 (en) 1987-07-06 1987-07-06 Printer machine arranged for reduction of its sound operating level
BE8800773A BE1004161A3 (en) 1987-07-06 1988-07-04 Printer machine arranged for a reduction of its operating sound level.
GB888815954A GB8815954D0 (en) 1987-07-06 1988-07-05 Printing machine with reduced operating noise level
ES8802105A ES2009317A6 (en) 1987-07-06 1988-07-05 Printing assembly, adapted for reduction of its operational sound level
IT944088A IT1224976B (en) 1987-07-06 1988-07-05 printer machine structured with a view to reducing the noise level of functioning
AU18765/88A AU604134B2 (en) 1987-07-06 1988-07-06 Printing machine adapted for reduction of its operating noise level
US07/412,804 US4968164A (en) 1987-07-06 1989-09-27 Printing assembly, adapted for reduction of its operational sound level

Publications (1)

Publication Number Publication Date
FR2617764A1 true FR2617764A1 (en) 1989-01-13

Family

ID=9352903

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8709550A Pending FR2617764A1 (en) 1987-07-06 1987-07-06 Printer machine arranged for reduction of its sound operating level

Country Status (7)

Country Link
US (1) US4968164A (en)
AU (1) AU604134B2 (en)
BE (1) BE1004161A3 (en)
ES (1) ES2009317A6 (en)
FR (1) FR2617764A1 (en)
GB (1) GB8815954D0 (en)
IT (1) IT1224976B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0397090A2 (en) * 1989-05-08 1990-11-14 Canon Kabushiki Kaisha Recording apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5602571A (en) * 1990-03-14 1997-02-11 Canon Kabushiki Kaisha Sheet feeding apparatus and recording system with it
EP1004529B1 (en) * 1998-11-24 2003-04-23 COMPUPRINT S.p.A. A roller feed device for a print substrate of non-uniform thickness

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5889387A (en) * 1981-11-21 1983-05-27 Canon Inc Paper feed mechanism
EP0104058A2 (en) * 1982-09-15 1984-03-28 Xerox Corporation Record carrier feed arrangement for a printer
JPS61134284A (en) * 1984-12-04 1986-06-21 Canon Inc Recorder
JPS61172767A (en) * 1985-01-29 1986-08-04 Canon Inc Printer
US4666322A (en) * 1984-08-20 1987-05-19 Brother Kogyo Kabushiki Kaisha Record carrier feed device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2390554A (en) * 1940-02-23 1945-12-11 Plum Stephen Haines Typewriting and manifolding
SU584367A1 (en) * 1975-10-14 1977-12-15 Предприяпе П/Я А-1955 Device for manufacturing electrode separators of electric accumulator
JPS5739980A (en) * 1980-08-22 1982-03-05 Nippon I B M Kk Feeder for printing paper
JPS58194587A (en) * 1982-05-08 1983-11-12 Ricoh Co Ltd Paper feeder for ink jet printer
JPS6038189A (en) * 1983-08-11 1985-02-27 Hitachi Ltd Noise preventing structure of printer
JPH0620948B2 (en) * 1986-03-14 1994-03-23 日本電気株式会社 Sheet feeder paper feed mechanism

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5889387A (en) * 1981-11-21 1983-05-27 Canon Inc Paper feed mechanism
EP0104058A2 (en) * 1982-09-15 1984-03-28 Xerox Corporation Record carrier feed arrangement for a printer
US4666322A (en) * 1984-08-20 1987-05-19 Brother Kogyo Kabushiki Kaisha Record carrier feed device
JPS61134284A (en) * 1984-12-04 1986-06-21 Canon Inc Recorder
JPS61172767A (en) * 1985-01-29 1986-08-04 Canon Inc Printer

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 10, no. 331 (M-533)[2387], 11 novembre 1986; & JP-A-61 134 284 (CANON INC.) 21-06-1986 *
PATENT ABSTRACTS OF JAPAN, vol. 10, no. 381 (M-547)[2438], 19 décembre 1986; & JP-A-61 172 767 (CANON INC.) 04-08-1986 *
PATENT ABSTRACTS OF JAPAN, vol. 7, no. 187 (M-236)[1332], 16 août 1983; & JP-A-58 89 387 (CANON K.K.) 27-05-1983 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0397090A2 (en) * 1989-05-08 1990-11-14 Canon Kabushiki Kaisha Recording apparatus
EP0397090A3 (en) * 1989-05-08 1991-06-12 Canon Kabushiki Kaisha Recording apparatus
US5742318A (en) * 1989-05-08 1998-04-21 Canon Kabushiki Kaisha Recording apparatus

Also Published As

Publication number Publication date
GB8815954D0 (en) 1988-08-10
AU1876588A (en) 1989-01-12
US4968164A (en) 1990-11-06
ES2009317A6 (en) 1989-09-16
AU604134B2 (en) 1990-12-06
IT1224976B (en) 1990-10-30
BE1004161A3 (en) 1992-10-06
IT8809440D0 (en) 1988-07-05

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